如何使用自动映射器动态构建自定义属性（在DTO中）

Question

我正在使用Automapper将我的实体映射到DTO。在我的DTO中，我有一个Url属性，应根据请求和ID进行构建。映射完成后，我目前正在构建Url。 Automapper是否可以动态映射它？

以下是我的实体：

public class Food
{
  public Food()
  {
    Measures = new List<Measure>();
  }

 public int Id { get; set; }
 public string Description { get; set; }

 public virtual ICollection<Measure> Measures { get;  set; }
}

 public class Measure
   {    
     public int Id { get; set; }
     public string Description { get; set; }
     public virtual Food Food { get; set; }
   }

以下是我的DTO的

public class FoodDto
    {
        public string Url { get; set; }

        public int Id { get; set; }

        public string Description { get; set; }

        public IEnumerable<MeasureDto> Measures { get; set; }
    }

public class MeasureDto
    {
        public string url { get; set; }

        public int id { get; set; }

        public string Description { get; set; }           
    }

映射完成后，我目前正在分配Url值，如下所示：

public IEnumerable<FoodDto> Get()
        {          
            var foodWithMeasures = _repo.GetAllFoodsWithMeasures()
                .OrderBy(f => f.Description)
                .Take(25)
                .ToList();

            _urlHelper = new UrlHelper(this.Request);


            var foodWithMeasuresDto = foodWithMeasures.Select(Mapper.Map<Food, FoodDto>);


            var withMeasuresDto = foodWithMeasuresDto.ToList();
            foreach (var food in withMeasuresDto)
            {
                string foodUrl = _urlHelper.Link("Food", new { id = food.Id });               
                food.Url = foodUrl;

                foreach (var measures in food.Measures)
                {
                    string measureUrl = _urlHelper.Link("Measure", new {foodid = food.Id, id = measures.id});
                    measures.Url = measureUrl;
                }              
            }


            return withMeasuresDto;

        }

下面是我的MappingProfile类：

 public MappingProfile()
        {

            Mapper.CreateMap<Food, FoodDto>();

            Mapper.CreateMap<Measure, MeasureDto>();
        }